pitrou commented on code in PR #44447:
URL: https://github.com/apache/arrow/pull/44447#discussion_r1804974475
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python/pyarrow/array.pxi:
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@@ -538,6 +538,51 @@ def repeat(value, size, MemoryPool memory_pool=None):
return pyarrow_wrap_array(c_array)
+def mask(indices, length, MemoryPool memory_pool=None):
+ """
+ Create a boolean Array instance where specific indices are marked as True.
+
+ Parameters
+ ----------
+ indices : list[int]
Review Comment:
It would be nice if `indices` could also be passed as a Arrow array... This
means that perhaps the C++ mask function should be a compute kernel?
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